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Quasi-two-dimensional strong liquid-like dynamics of surface atoms in metallic glasses

Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 102-109页

作者： Bing Wang Xuanqiao Gao rui su Pengfei Guan School of Physical Science and Technology Northwestern Polytechnical UniversityXi'an 710072China Innovation Center NPU Chongqing Northwestern Polytechnical UniversityChongqing 401135China School of Mechanics Civil Engineering and ArchitectureNorthwestern Polytechnical UniversityXi'an 710072China Northwest Institute for Nonferrous Metal Research Xi'an 710016China Institute of Advanced Magnetic Materials College of Materials and Environmental EngineeringHangzhou Dianzi University Hangzhou 310018China Beijing Computational Science Research Center Beijing 100093China

The fast dynamic properties of the surface of metallic glasses(MGs) play a critical role in determining their potential applications. However, due to the significant difference in thermal history between atomic simulation models and laboratory-made samples, the atomic-scale behaviors of the fast surface dynamics of MGs in experiments remain uncertain. Herein, we prepared model MG films with notable variations in thermal stability using a recently developed efficient annealing protocol, and investigated their atomic-scale dynamics systematically. We found that the dynamics of surface atoms remain invariant, whereas the difference in dynamical heterogeneity between surface and interior regions increases with the improvement of thermal stability. This can be associated with the more pronounced correlation between atomic activation energy spectra and depth from the surface in samples with higher thermal stability. In addition, dynamic anisotropy appears for surface atoms, and their transverse dynamics are faster than normal components, which can also be interpreted by activation energy spectra. Our results reveal the presence of strong liquid-like atomic dynamics confined to the surface of laboratory-made MGs, illuminating the underlying mechanisms for surface engineering design, such as cold joining by ultrasonic vibrations and superlattice growth.

关键词： metallic glasses thermal stability invariant surface dynamics potential energy landscape dynamic anisotropy and heterogeneity

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A real-world study of the differences in Traditional Chinese Medicine diagnosis and treatment rules for coronavirus disease 2019 between Northern and Southern China

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Journal of Traditional Chinese Medicine 2024年第4期44卷 822-829页

作者： su rui su Youzhu WANG Shuo FAN Jie LIU Qingquan LIU Mifeng Department of infectious diseases Capital Medical University Beijing Hospital of Traditional Chinese Medicine

OBJECTIVE: To explore the differences in Traditional Chinese Medicine(TCM) diagnosis and treatment rules for coronavirus disease 2019(COVID-19) between Northern and Southern China based on the real-world data from 982 COVID-19 patients. METHODS: All consecutive cases of COVID-19 admitted to the TCM department of designated COVID-19 hospitals in eight provinces and cities were retrospectively analyzed. Patients were divided into a Northern and a Southern group according to the location of the admitting hospital. The symptoms, syndrome elements, syndrome distribution and herbal treatments were analyzed. The core prescriptions were extracted using the multiscale backbone-based network comparison algorithm(msbNC). REsuLTS: The distribution of syndrome elements showed that dampness was common in Northern and Southern China, wind and heat were more often present in the South, while fire toxin and spleen deficiency were more often encountered in the North. The distribution of syndromes showed that the South was dominated by heat dampness accumulating in the lung(55.69%), while the North was dominated by dampness-toxin stagnating in the lung(44.90%).The results of core prescription mining showed that dispelling dampness, dispersing wind, clearing heat and strengthening spleen were the common treatment methods in Northern and Southern China. For mild cases, Jinyinhua(Flos Lonicerae) and Lianqiao(Fructus Forsythiae suspensae) were often used in the South to clear heat and relieve exterior symptoms, while Chaihu(Radix Bupleuri Chinensis) and Huangqin(Radix Scutellariae Baicalensis) were often used in the North to relieve muscles by expelling heat. For moderate cases, Chaihu(Radix Bupleuri Chinensis), Qinghao(Herba Artemisiae Annuae), and Shigao(Gypsum Fibrosum) were often used to clear heat of Tri-jiao Channel and stomach in the South, while Fuling(Poria), Chenpi(Pericarpium Citri Reticulatae), and Dangshen(Radix Codonopsis) were often used to invigorate spleen and remove damp

关键词： COVID-19 North-South difference core prescription medicine, Chinese traditional retrospective studies syndrome

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Internal m^(6)A and m^(7)G RNA modifications in hematopoietic system and acute myeloid leukemia

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Chinese Medical Journal 2024年第9期137卷 1033-1043页

作者： Xiaoxu Zhang Yanni Ma Jia Yu rui su Xiaoshuang Wang State Key Laboratory of Common Mechanism Research for Major Diseases State Key Laboratory for ComplexSevereand Rare DiseasesInstitute of Basic Medical SciencesChinese Academy of Medical Sciences/Peking Union Medical CollegeBeijing 100005China Department of Systems Biology Beckman Research Institute of City of HopeMonroviaCA 91016USA The Institute of Blood Transfusion Chinese Academy of Medical Sciences/Peking Union Medical CollegeChengduSichuan 610052China Key Laboratory of RNA and Hematopoietic Regulation Chinese Academy of Medical SciencesBeijing 100005China Department of Biochemistry and Molecular Biology Chinese Academy of Medical SciencesSchool of Basic Medicine Peking Union Medical CollegeBeijing 100005China

Epitranscriptomics focuses on the RNA-modification-mediated post-transcriptional regulation of gene *** past decade has witnessed tremendous progress in our understanding of the landscapes and biological functions of RNA modifications,as prompted by the emergence of potent analytical *** hematopoietic system provides a lifelong supply of blood cells,and gene expression is tightly controlled during the differentiation of hematopoietic stem cells(HSCs).The dysregulation of gene expression during hematopoiesis may lead to severe disorders,including acute myeloid leukemia(AML).Emerging evidence supports the involvement of the mRNA modification system in normal hematopoiesis and AML pathogenesis,which has led to the development of small-molecule inhibitors that target N6-methyladenosine(m^(6)A)modification machinery as ***,we summarize the latest findings and our most up-to-date information on the roles of m^(6)A and N7-methylguanine in both physiological and pathological conditions in the hematopoietic ***,we will discuss the therapeutic potential and limitations of cancer treatments targeting m^(6)A.

关键词： N6-methyladenosine N7-methylguanine Hematopoiesis Acute myeloid leukemia Therapeutic target RNA modifications

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DMF-scMT-seq linking methylome and transcriptome within single cells with digital microfluidics

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Science China Chemistry 2024年第6期67卷 2070-2078页

作者： Xing Xu Xi Zeng Xin Lin Shiyan Lin Shanshan Liang Tian Tian rui su Jia Song Chaoyong Yang Collaborative Innovation Center of Chemistry for Energy Materials The MOE Key Laboratory of Spectrochemical Analysis and InstrumentationState Key Laboratory of Physical Chemistry of Solid SurfacesDepartment of Chemical BiologyCollege of Chemistry and Chemical EngineeringThe First Affiliated Hospital of Xiamen UniversityXiamen UniversityXiamen361005China Institute of Molecular Medicine Renji HospitalShanghai Jiao Tong University School of MedicineShanghai200127China Chemistry and Materials Science College Shanghai Normal UniversityShanghai200234China Chemistry and Biomedicine Innovation Center(ChemBIC) School of Chemistry and Chemical EngineeringNanjing UniversityNanjing210023China

Single-cell joint analysis of methylome and transcriptome reveals how the methylation regulates the transcriptional ***,traditional bench-top protocols for single-cell DNA methylation and RNA transcription co-detection are laborintensive,cost-ineffective and ***,we establish the DMF-sc MT-seq,a highly-efficient and cost-effective method to simultaneously analyze single-cell DNA methylation and transcriptional activity based on digital *** MT-seq automates the workflow of single-cell isolation,cellular hypotonic lysis,nucleic acid separation and methylome/transcriptome library construction in a contactless and addressable *** system ensures high accuracy(R>0.85),high gene detection ability(14,697 genes per cell at 4 million sequencing depth),and high CpG coverage(677,198 CpG sites per cell at 1million sequencing depth).By using DMF-sc MT-seq,the relationship of DNA methylation and RNA transcription under different genomic contexts is *** further apply DMF-sc MT-seq to study the dynamics of transcription regulation with methylation-inhibiting anti-tumor Decitabine,and identify the methylated promoter/gene body driven genes in response to Decitabine ***-sc MT-seq facilitates the construction of the correlation of DNA methylation and transcriptional activity at the single-cell level in a flexible,sensitive and accurate way,which is anticipated to be a powerful tool in studying single-cell biological systems.

关键词： single-cell analysis digital microfluidics methylome sequencing transcriptome sequencing

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Liquid-metal microgrid stretchable electronics based on bionic leaf veins with ultra-stretchability and high conductivity

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Rare Metals 2024年第6期43卷 2747-2757页

作者： Xi-Di sun Jun-Yang An Yi-Qi sun Xin Guo Jing Wu Jiang-Bo Hua Meng-rui su Yi Shi Li-Jia Pan Collaborative Innovation Center of Advanced Microstructures School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China

Stretchable electronics that monitor joint activity and treat diseases based on liquid metal could be used in the development of healthcare *** devices can be seamlessly integrated with human ***,most high-precision microstructures and complex patterns are difficult to fabricate due to the limitations of conventional fabrication solutions,resulting in suboptimal performance under practical ***,a liquid-metal stretchable system utilizing natural leaf veins was reported as microstructures,which was based on a biomimetic concept and utilized an all-solution process for the preparation of complex *** systems are ultra-high tensile(800%tensile strain),environmentally stable(20 days)and mechanically durable(300-cycle).The system can accurately recognize the wearer's finger bending level as well as simple gesture *** the same time,the system acts as a wearable heater,which can realize the fast heating behavior of heating up to 50℃in 3 min under the human body-safe voltage(1.5 V).The tensile stability is demonstrated by the heterogeneous integration of lasers(405 nm)with the system interconnects for a stretchable and wearable light source.

关键词： Stretchable electronics Liquid metal Stretchable conductor Vein Bionicist electronics

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Identification of a natural PLA2 inhibitor from the marine fungus Aspergillus sp.c1 for MAFLD treatment that suppressed lipotoxicity by inhibiting the IRE-1a/XBP-1s axis and JNK signaling

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Acta Pharmaceutica Sinica B 2024年第1期14卷 304-318页

作者： Yong Rao rui su Chenyan Wu Xingxing Chai Jinjian Li Guanyu Yang Junjie Wu Tingting Fu Zhongping Jiang Zhikai Guo Congjun Xu Ling Huang Key Laboratory of Tropical Biological Resources of Ministry of Education School of Pharmaceutical SciencesHainan UniversityHaikou 570200China Hainan Key Laboratory of Tropical Microbe Resources Institute of Tropical Bioscience and BiotechnologyChinese Academy of Tropical Agricultural Sciences&Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan ProvinceHainan Institute for Tropical Agricultural ResourcesHaikou 571101China School of Pharmaceutical Sciences Guangdong Provincial Key Laboratory of New Drug Design and EvaluationSun Yat-sen UniversityGuangzhou 510275China Laboratory Animal Center of Guangdong Medical University Dongguan 523808China

Lipotoxicity is a pivotal factor that initiates and exacerbates liver injury and is involved in the development of metabolic-associated fatty liver disease(MAFLD).However,there are few reported lipotoxicity ***,we identified a natural anti-lipotoxicity candidate,HN-001,from the marine fungus Aspergillus ***-001 dose-and time-dependently reversed palmitic acid(PA)-induced hepatocyte *** protection was associated with IRE-1a-mediated XBP-1 splicing inhibition,which resulted in suppression of XBP-1s nuclear translocation and transcriptional *** of XBP-1s attenuated lipotoxicity,but no additional ameliorative effect of HN-001 on lipotoxicity was observed in XBP-1s knockdown ***,the ER stress and lipotoxicity amelioration was associated with *** HN-001 and the PLA2 inhibitor MAFP inhibited PLA2 activity,reduced lysophosphatidylcholine(LPC)level,subsequently ameliorated *** contrast,overexpression of PLA2 caused exacerbation of lipotoxicity and weakened the anti-lipotoxic effects of ***,HN-001 treatment suppressed the downstream pro-apoptotic JNK *** vivo,chronic administration of HN-001(i.p.)in mice alleviated all manifestations of MAFLD,including hepatic steatosis,liver injury,inflammation,and *** effects were correlated with PLA2/IRE-1a/XBP-1s axis and JNK signaling *** data indicate that HN-001 has therapeutic potential for MAFLD because it suppresses lipotoxicity,and provide a natural structural basis for developing anti-MAFLD candidates.

关键词： Lipotoxicity MAFLD ER stress IRE-1a XBP-1s JNK PLA2

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高等教育规划的生成过程与内在逻辑——基于美国加州1868—2023年系列教育规划的分析

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现代大学教育 2024年第1期40卷 57-67,112页

作者：邬大光苏睿兰州大学高等教育研究院兰州730030 厦门大学教育研究院

西方发达国家以制定教育规划的方式谋划本国高等教育发展是一个普遍做法。但是,由于国情不同,不同国家制定规划的过程不尽相同,颁布后的规划产生的历史作用亦不尽相同。研究基于美国加州1868年至2023年间颁布的系列教育规划,采用历史制... 详细信息

西方发达国家以制定教育规划的方式谋划本国高等教育发展是一个普遍做法。但是,由于国情不同,不同国家制定规划的过程不尽相同,颁布后的规划产生的历史作用亦不尽相同。研究基于美国加州1868年至2023年间颁布的系列教育规划,采用历史制度主义理论的“历史—结构—行动者”分析框架,剖析了《加州高等教育总体规划》的生成过程和内在逻辑。制度变迁的内在逻辑在历史维度上表现为路径依赖制约下的规划发展,在结构维度上表现为多种政治要素间的交互作用,在行动者维度上表现为行动者偏好引导的利益博弈。加州高等教育体系在形成过程中有3对值得关注的重要关系,它们分别是本土与现代、供给与需求、计划与市场的关系。本土与现代建构的价值体系是基本动力,供给与需求建构的实践机制是根本动力,计划与市场建构的管理模式是直接动力。

关键词：《加州高等教育总体规划》高等教育总体规划历史制度主义内在逻辑动力机制

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Unraveling the efficacy network: A network meta-analysis of adjuvant external beam radiation therapy methods after hepatectomy

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World Journal of Gastrointestinal surgery 2024年第1期16卷 205-214页

作者： Gao-Yuan Yang Zhi-Wei He Yong-Chang Tang Feng Yuan Ming-Bo Cao Yu-Peng Ren Yu-Xuan Li Xiao-rui su Zhi-Cheng Yao Mei-Hai Deng Department of Hepatobiliary surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630Guangdong ProvinceChina Department of General surgery Qilu HospitalShandong UniversityJinan 250012Shandong ProvinceChina Department of General surgery The First Affiliated HospitalGuangzhou Medical UniversityGuangzhou 511436Guangdong ProvinceChina Department of Hepatobiliary and Pancreatic surgery The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhou 510630Guangdong ProvinceChina

BACKGROUND Primary liver cancer is a malignant tumor with a high recurrence rate that significantly affects patient *** adjuvant external radiation therapy(RT)has been shown to effectively prevent recurrence after liver cancer ***,there are multiple RT techniques available,and the differ-ential effects of these techniques in preventing postoperative liver cancer re-currence require further *** To assess the advantages and disadvantages of various adjuvant external RT methods after liver resection based on overall survival(OS)and disease-free survival(DFS)and to determine the optimal *** This study involved network meta-analyses and followed the PRISMA *** data of qualified studies published before July 10,2023,were collected from PubMed,Embase,the Web of Science,and the Cochrane *** included relevant studies on postoperative external beam RT after liver resection that had OS and DFS as the primary *** magnitudes of the effects were determined using risk ratios with 95%confidential *** results were analyzed using R software and STATA *** A total of 12 studies,including 1265 patients with hepatocellular carcinoma(HCC)after liver resection,were included in this *** was no significant heterogeneity in the direct paired comparisons,and there were no significant differences in the inclusion or exclusion criteria,intervention measures,or outcome indicators,meeting the assumptions of heterogeneity and *** analysis revealed that patients who underwent stereotactic body radiotherapy(SBRT)after resection had longer OS than those who underwent intensity modulated radiotherapy(IMRT)or 3-dimensional conformal RT(3D-CRT).DFS analysis revealed that patients who underwent 3D-CRT after resection had the longest *** who underwent IMRT after resection had longer OS than those who underwent 3D-CRT and longer DFS than those who underwent ***

关键词： Primary liver cancer Hepatocellular carcinoma Network meta-analysis External beam radiation therapy Stereotactic body radiotherapy Intensity modulated radiotherapy

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土壤盐胁迫对紫花苜蓿磷素利用的影响

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水土保持学报 2024年第2期38卷 414-422页

作者：赵乐苏睿何红花西北农林科技大学资源环境学院陕西杨凌712100 平凉市环境工程评估中心甘肃平凉744000 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室陕西杨凌712100

[目的]为了研究土壤磷肥和盐分及其交互作用对紫花苜蓿生长、磷营养和耐盐性的影响。[方法]通过向[土娄]土中添加不同浓度梯度的磷肥(0,40,80,160mg/kg,以KH_(2)PO_(4)的形式添加)和氯化钠(0,0.4,0.8,1.6g/kg)进行温室盆栽试验,种植紫... 详细信息

[目的]为了研究土壤磷肥和盐分及其交互作用对紫花苜蓿生长、磷营养和耐盐性的影响。[方法]通过向[土娄]土中添加不同浓度梯度的磷肥(0,40,80,160mg/kg,以KH_(2)PO_(4)的形式添加)和氯化钠(0,0.4,0.8,1.6g/kg)进行温室盆栽试验,种植紫花苜蓿“甘农七号”。[结果]紫花苜蓿地上部生物量和地下部生物量均随着磷肥施加水平的提高而增加,但随着盐分添加水平的提高而减少;施磷时植物的磷吸收量增加,当磷水平为160mg/kg时,根、茎、叶的磷含量均达到最大。添加盐分抑制对磷的吸收,当盐水平为1.6g/kg时,根、茎、叶的磷含量与不加NaCl时相比显著减少;与不加磷肥时相比,酒石酸含量随着磷肥水平升高而减少,外源盐分添加显著增加紫花苜蓿根际酒石酸的含量;大部分处理的根际pH与非根际pH相比均降低,在盐胁迫的情况下土壤pH的降低提高土壤磷的有效性和植物对磷的吸收;高剂量(160mg/kg)的磷肥添加使紫花苜蓿的磷吸收效率、磷利用效率均显著降低。[结论]土壤磷肥与盐分之间存在显著的交互作用,盐分增加加剧植物磷缺乏,适当施用磷肥可提高紫花苜蓿的耐盐性,并提高其在盐渍土壤中的生产力。

关键词：紫花苜蓿磷有效性盐分磷吸收效率根际酒石酸

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RNA m^(6)A reader YTHDF2 facilitates precursor miR-126 maturation to promote acute myeloid leukemia progression

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Genes & Diseases 2024年第1期11卷 382-396页

作者： Zheng Zhang Keren Zhou Li Han Andrew Small Jianhuang Xue Huilin Huang Hengyou Weng rui su Brandon Tan Chao Shen Wei Li Zhicong Zhao Ying Qing Xi Qin Kitty Wang Keith Leung Mark Boldin Chun-Wei Chen David Ann Zhijian Qian Xiaolan Deng Jianjun Chen Zhenhua Chen Department of Systems Biology Beckman Research Institute of City of HopeMonroviaCA 91016USA Irell and Manella Graduate School of Biological Sciences Beckman Research Institute of City of HopeDuarteCA 91010USA Gehr Family Center for Leukemia Research City of HopeDuarteCA 91010USA sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdong 510060China Guangzhou Laboratory GuangzhouGuangdong 510005China Bioland Laboratory GuangzhouGuangdong 51005China Department of Liver surgery Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Diabetes Complications and Metabolism Beckman Research Institute of City of HopeDuarteCA 91010USA Department of Biochemistry and Molecular Biology University of FloridaGainesvilleFL 32603USA Tongji Hospital Affiliated to Tongji University Frontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China School of Pharmacy China Medical UniversityShenyangLiaoning 110001China

As the most common internal modification of mRNA,Ne-methyladenosine(m^(6)A)and its regulators modulate gene expression and play critical roles in various biological and patholog-ical processes including *** was reported previously that m^(6)A methyltransferase(writer),methyltransferase-like 3(METTL3)adds m^(6)A in primary microRNAs(pri-miRNAs)and fa-cilitates its processing into precursor miRNAs(pre-miRNAs).However,it is unknown whether m^(6)A modification also plays a role in the maturation process of pre-miRNAs and(if so)whether such a function contributes to ***,we found that YTHDF2 is aberrantly overexpressed in acute myeloid leukemia(AML)patients,especially in relapsed patients,and plays an onco-genic role in ***,YTHDF2 promotes expression of miR-126-3p(also known as miR-126,as it is the main product of precursor miR-126(pre-miR-126)),a miRNA that was reported as an oncomiRNA in AML,through facilitating the processing of pre-miR-126 into mature ***,YTHDF2 recognizes m^(6)A modification in pre-miR-126 and recruits AGO2,a regulator of pre-miRNA processing,to promote the maturation of ***2 posi-tively and negatively correlates with miR-126 and miR-126's downstream target genes,respec-tively,in AML patients,and forced expression of miR-126 could largely rescue YTHDF2/Ythdf2 depletion-mediated suppression on AML cell growth/proliferation and leukemogenesis,indi-cating that miR-126 is a functionally important target of YTHDF2 in ***,our studies not only reveal a previously unappreciated YTHDF2/miR-126 axis in AML and highlight the ther-apeutic potential of targeting this axis for AML treatment,but also suggest that m^(6)A plays a role in pre-miRNA processing that contributes to tumorigenesis.

关键词： AML miR-126 N^(6)-methyladenosine Pre-miRNA maturation YTHDF2

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